Simulation Calculation and Analysis of Electronic Structure and Electrical Properties of Metal-Doped SnO₂

Table 2

Common valence states and ionic radii of doped metals.

	Sn	Sb	Sr	Ga	Ti	Ge
Common valence states	+4	+3	+2	+3	+2	+4
Ionic radii (Å)	0.690	0.760	1.18	0.620	0.860	0.530